CCC’s custom designers can turn your brilliant (-ly idiotic?) notion into reality. (Check out creativecostume.com for pictures of how they turned a sketch into a Cleopatra costume, complete with a sky-high peacock feather headdress.) Their Creative Couples option also offers pairings for you and your significant other such as Fred Astaire and Ginger Rogers, and Juan Valdez and his donkey. For folks who’d prefer to save space in their closets after November 1, rental fees for off-the-rack outfits range from $50 to $350.